Why fasting bolsters brain power: Mark Mattson at TEDxJohnsHopkinsUniversity


Translator: Madina Juarez
Reviewer: Carlos Arturo Morales Thanks, Brian. I am at the National Institute on Aging,
and as many of you know– people are getting older,
and there have been advances in cancer research,
cardiovascular disease research– many people who would have died
in their 50s and 60s from those diseases are living into the danger zone
for Alzheimer’s and Parkinson’s diseases. It’s projected that by 2050,
the number of people with Alzheimer’s disease
will triple from what it is today. It’s 5 million today,
it’ll be 15 million by 2050. In my lab, we use a number
of different animal models that are relevant to age-related
neurodegenerative disorders. We have mice that accumulate
amyloid in their brain as they get older, and they have learning
and memory problems. We have mice that have damage
to dopamine producing neurons, that control body movements–
that’s Mylo-Parkinson’s disease. And we also have models of stroke,
which is again another major-rate problem and cause of death. Well, it has been known for a long time
that one way to extend And, in rats and mice one can increase
their life span by 30 or 40%. We started looking at the effects
of energy restriction on the brain in the context of age-related
neurodegenerative disorders, and found that we could slow down,
for example, the abnormal accumulation of amyloid,
or the degeneration of dopamine neurons in the Alzheimer’s and Parkinson’s myel
by reducing energy intake. Now, there’s a number of ways
you can reduce energy intake. You can simply eat less at each meal, or you can do what we call
intermittent fasting. So, reduce the frequency of the meals. And, what I am going to tell you today is that fasting does good things
for the brain. In the animals we have insight into
a lot of the neurochemical changes that are occurring in the brain
that we think explain why fasting is good for the brain. But I am going to start out and talk a little bit
about anecdotal evidence that fasting is good for the brain, and also evolutionary prospective on why fasting might be good
for the brain. OK. So everybody knows
that in certain religions people will fast periodically. Down through history many famous people with good brains have fasted regularly. Up on the top here is a quote from Plato, he fasted for greater physical
and mental efficiency. There are some quotes there, including one from about 6,000 years ago, an Egyptian pyramid inscription that says, “Humans live on one-quarter
of what they eat; on the other three-quarters live their doctors.” And in this country, as you know,
being overweight is a big problem. It’s not only a risk factor for
cardiovascular disease and diabetes, certain cancers,
but emerging evidence suggests that it’s also a risk factor
for age-related cognitive impairment, and possibly Alzheimer’s disease. In the lower right,
there is a reference to a book written over a hundred years ago
by Upton Sinclair. Many of you may know Upton Sinclair
is the author of “The Jungle”, a book on meatpacking industry,
but he also wrote and published the book that you can find in the full text online,
it’s called “The Fasting Cure”. In that book he interviewes 250 people
who had some ailment and went on fast
for various lengths of time, and except in a handful of cases, their health condition improved. OK, before I focus on the brain,
which will be the main part of my talk, I just want to point out that there is evidence
not just from animals, but from humans that fasting
is good for the body. It will reduce inflammation, it will reduce oxidative stress
in organ systems throughout the body, and one thing that happens when you fast,
that does not happen when you eat three meals a day,
is that your energy metabolism shifts so that you start burning fats. Every time you eat a meal
the energy goes into your liver and it’s stored in the form of glycogen– and it’s always tapped into first. And it takes about 10 to 12 hours
before you deplete the glycogen stores in your liver. So, if you eat three meals a day
you never deplete the glycogen stores in your liver, although if you exercise
you can. And once you deplete
the glycogen stores in your liver then you start burning fats, and you produce
what are called ketone bodies. It turns out ketone bodies
are very good for your brain, and I’ll talk about that in a minute. Now, we’ve done a lot of work on animals in the 90s, between 15 and 20 years ago, showing that intermittent fasting was
good for the brain, then we started collaborating
with some investigators, did some human studies
looking at effects on the body, some that were shown on the last slide. And then a producer at the BBC
named Michael Mosley made a program on intermittent fasting
that was aired on the BBC, it’s been aired on PBS. He wrote a book called “The Fast Diet”. And just in the last two years
there’s been a flurry of books on intermittent fasting for health, and it’s becoming what, I think–
some people may think it’s a fad, but hopefully people find some of these– What do I mean by intermittent fasting,
and intermittent energy restriction? There’s a lot of variations,
that there’ve been on used on this. One sort– a harsh one is
every other day only eat 500 calories. And in our human studies we’ve been doing
what’s called the 5:2 diet, where 2 days a week
you only eat 500 calories, the other 5 days you eat normally. Eat healthy if you can. In this book called “The 8-Hour Diet”
there’s evidence that if you restrict the time window that you eat each day
to 8 hours or less, it’ll have health benefits, again, that’s long enough
to shift the energy metabolism. OK, why does fasting bolster brain power? During development of your brain,
but also in the adult, neurons are generated from stem cells. They grow out their axons and dendrites,
they form connections with each other, synapses, and communicate with each other. During aging, many people–
their brain ages successfully, they stay cognitively intact, whereas, unfortunately,
others develop diseases. We think the reason,
the main take-home message of this talk, is fasting is a challenge to your brain, and your brain responds to that challenge of not having food by activating
adaptive stress response pathways that help your brain cope with stress,
and resist disease. Does this make sense
in evolutionary terms? Anything we talk about in biology,
we always have to ask the question, “Why is it that way? Why when we take animals and put them
on an intermittent fasting diet, are their neurons protected, in mice,
of Alzheimer’s and Parkinson’s disease? Why do they perform better
when we test their learning and memory?” It amazes. Well, if you’re hungry
and haven’t found food, you better figure out how to find food. You don’t want your brain to shut down
if you’re hungry. And, in fact, that’s what we find
in the animals: Nerve cell circuits are more active. Some of the changes in the brain
that occur with intermittent fasting also occur with vigorous exercise. Now, most people, and Jeff this morning
gave a nice talk on showing the benefits
of exercise on him. I think you probably found
that it benefited your brain too? OK. So, when we start looking at what are the neurochemical changes
in the brain with intermittent fasting. They are very similar to exercise. Now on this slide,
in the upper left picture, the third boy on the right running,
that’s my son, he is in the audience. You can tell by the faces of the 3 kids–
they are in a cross-country race, that’s a challenge, right? They are probably saying
to themselves during the race– I used to run races myself,
I still occasionally do– “Why am I doing this?” However, when they get done with the race,
they feel great, and they feel relaxed. During the cross-country season
my wife and I– It’s very obvious our son’s mood
was better. On the right, my daughter is in the white. Her mood was better during
cross-country season. Why is that? Exercise and intermittent fasting
both increase the production of proteins in the brain that are called
neurotrophic factors. We discovered this many years ago,
back when I was a postdoc in Colorado in 1980s. We found that these neurotrophic factors,
such as FGF, and one called BDNF, brain-derived neurotrophic factor,
promote the growth of neurons, promote the connection of neurons,
and the strengthening in synapses. OK, so here is the idea: Challenges to you brain,
whether it’s intermittent fasting, vigorous exercise,
or what we are doing now, hopefully if you haven’t fallen asleep,
is cognitive challenges. When this happens,
neurocircuits are activated, levels of neurotrophic factors
such as BDNF increase. That promotes the growth of the neurons, the formation and strengthening
of synapses. Also shown in the lower left,
it turns out both, exercise and intermittent fasting,
and using your neurons, using your brain can increase the production
of new nerve cells from stem cells, at least in one region of your brain,
called the hippocampus, which is shown here. I mentioned ketones,
which come from burning fat, and that happens during fasting. The Romans discovered ketones
even though they had no idea, they haven’t taken any chemistry course,
or didn’t know what it was. People with epileptic seizures back then, they thought they were possessed
by demons. And they found if they take these people
and shut them in a room, and don’t feed them,
the demons will go away. What’s happening is: ketones go up, and it’s well known that
ketons suppress seizures, and in fact, ketogenic diets
are used to treat, even today, patients with severe epilepsy. We are doing my work in my lab trying to understand
why ketones are good for neurons. One reason is they provide
an alternative fuel for the neurons, they boost the energy levels
in the neurons. Recently we discovered that fasting, by increasing BDNF levels in the brain,
as a neurotrophic factor, can increase the number of mitochondria in your nerve cells. And I am not going to go
into details of this slide, but the mechanism is very similar
to the mechanism where by exercising your muscles
increases the number of mitochondria in your muscles. The fasting is a mild energetic stress,
and the neurons respond adaptively by increasing mitochondria,
which helps them produce more energy, and in this paper cited down here,
“Nature Communications”, we recently showed that by increasing the number
of mitochondria in neurons, it can increase the ability of the neurons
to form and maintain synapses, and thereby increase
learning and memory ability. In addition to the increasing
neurotrophic factors and increasing neuronal bioenergetics, we’ve found that intermittent fasting will enhance the ability
of your nerve cells to repair DNA, so right now– and also probably exercise, and also intellectual challenges. And again, what’s happening in this case
when you are using your neurons, exercising your neurons, it causes a mild oxidative stress, and at the same time
that there is increased oxidative stress the cells are enhancing their ability
to repair oxidative damage to DNA. Why is it that the normal diet
is three meals a day plus snacks? It isn’t that it’s the healthiest way,
eating pattern, and that’s my opinion, but I think
there’s a lot of evidence to support that. There are a lot of pressures
to have that eating pattern. There’s a lot of money involved. The food industry,
are they going to make money from skipping breakfast like I did today? No, they are going to lose money. If people fast the food industry
loses money. What about the pharmaceutical industries? What if people do
some intermittent fasting, and exercise periodically,
and they are very healthy? Is the pharmaceutical industry
going to make any money on healthy people? So, one challenge for a society, and this is one of the purposes
of these TED Talks, hopefully, is that communication is the way
to improve health. People understanding what they can do
to improve their health and then taking action,
like Jeff talked about So, I would urge you to communicate,
and spread the word that there are ways for people
to be healthy, and maybe we can do this even with– Of course, I am working for NIH,
and one thing about NIH is we are using your tax payer’s money
to try to help your health. We don’t have a profit motive. So, really one of the main reasons
I’ve got interested in things like intermittent fasting,
exercise, trying to understand
at the cellular molecular level, what’s happening in the brain. This is research that isn’t commonly done, and it’s not done at all
by pharmaceutical industries, and it’s not done so much. So, I am going to end with this slide. And thank you very much
for your attention. And try it out, you can just play around
with these kinds of diets, and you may find… What we found in our human studies
though is it’s kind of like exercise: if you’ve never exercised before,
and you go and run 3 miles, you are not going to feel good. If you eat 3 meals a day, and all of a sudden
you go all day not eating anything that day you are going to feel irritable,
and ornery, and so on. But it turns out if you can
kind of force yourself to do that, maybe one day a week for a month,
and then two days a week, you get used to it,
and after a month or two many people can adapt
to that kind of diet with no problem and you’ll find that on the days
when you don’t eat so much you are more productive.
Thank you. (Applause)

100 Responses

  1. anjum iqbal says:

    I am a Muslim , I started fasting from the age of 8, at the age of 14 I was fasting for the whole month of Ramadhan, , I am past 70 , and I continue to fast through the whole mont of Ramadhan , always felt great ,

  2. JO B says:

    Muslims fast one month a year. Also, a good number of them fast twice a week, Monday and Thursday.

  3. Mohd. Aadil Malik says:

    A lot of thanks for you to explaining it so clearly .
    And I am a Muslim Who is blessed by Month of Ramadan.
    Alhamdulillah

  4. Liam M Stacey says:

    Got into intermittent fasting by reducing breakfast size over the course of a week. Just a cup of green tea and a glass of water for me. Sometimes I break the habit to share a meal with my little girl.
    Feel much better!!!!!

  5. Franklyn Gibbons says:

    Thank you

  6. Peace Ful says:

    Peace to All. Aslam Alaikum, Muslims keep fasting 30 days in Ramadan Month, every year. Throughout their lives, Fasting is obligatory..

  7. Knowledge Seeker says:

    Alhamdullilah this is part of my religion

  8. Marco Deo says:

    Today is Saturday. I started Intermittant fasting Thursday ,2 days ago. I fasted thursday and Friday only 2 days so far. I basically skipped breakfast. I workout from 12 pm to 1 pm. Eat at 2 pm tp 8 pm. Starting weight 210. Friday morning 205. Sat morning 208. I havent slept 8 hours in a row in years. The last two nights I slept like a baby 8 hours.

  9. Perry says:

    Great talk. I am trying to loose weight and understanding all the biochemistry of what is going on helps me stick to it.

  10. Kathy Smith says:

    Excellent. Great information.

  11. Pilgrim's Promise says:

    Hideous opening music

  12. Clive Lindley says:

    The ancients knew best and they expressed what they knew with simple powerful clarity.

  13. Kasnar F Burns says:

    Start out with intermittent fasting. You don't have to go cold turkey!!!

  14. Phillip Sims says:

    JESUS fasted and advocated for fasting , it has to be good for us , after all , he created us , eh ?

  15. Alpha Geminorum says:

    As of this comment I've been doing IM for 19 months and a semi keto diet for about a year. Not only did I lose the weight I sought to lose, my energy level went up, my brain fog has disappeared and I'm no longer pre-diabetic. It's a LIFESTYLE for me now. All I had to do was stop eating b'fast and cut back 99% of sugar and wheat. I substitute those two with alternatives that work PERFECTLY but don't spike my insulin. The world is OBESE now due to our amazing ability to grow abundant food. Sadly, the advertisers are shoving the WRONG foods into our faces instead of the right ones. If you take charge of your food lifestyle you will immediately begin to be healthy. It's your FOOD INTAKE that's killing you.

  16. Real2Real % says:

    When I try fasting after the 3rd day I start becoming paranoid. and I end up stopping it. Any one can suggest any help? Thanks

  17. zipo dipo says:

    Here's one for the atheists. If you fast for forty days and forty nights you can see God. But if you can't fast you'll miss out and always believe he doesn't exist. Too bad hey ?

  18. FrugalPrepper's Garage & Garden says:

    For me Exercise is the BB Gun to loosing weight. What you eat is pistol. When you eat is the big old double barreled shot gun to fixing your health. What's interesting, is when I don't eat my exercise increases, because I am full of energy. I can't stand sitting around. Time to go make a new flower bed or haul a ton of gravel or a truckload of mulch. I see so many people focus on the BB gun. They go out and run at lunch and then come back and have a cup cake. They could sit in there chair all day and skip the cup cake and be better off.

  19. Sassifrass7 says:

    I am thinking that he almost never eats. He is planning on living forever! But he looks terribly unhealthy to me. A chubbier person might not live as long, but they sure are easier to look at,….and probably more fun to have around.

  20. Redhead 67 says:

    Jesus/Christians fasted and still do do today. Don't leave that out!

  21. Voltaire of Paris says:

    The NIH does not have a profit motive? You are funded by Politicians under the sway of lobbyists. That's how we got the food pyramid. You have a good message, tell the truth but don't pretend your an Angle because you are a government employee.

  22. S.M. Brown says:

    I'm an older man and I've fasted for the last 20 years on and off. It works. My mental clarity after I fast is excellent. One problem I encountered was body odor. A few years back I was able to find Granny's Natural Deodorant. It's All Natural and Aluminum Free and it's the only natural deodorant that works for me.

  23. scottishcovenanters says:

    I like the way you speak. I have begun intermittent fasting and have felt better than I have in years. There is a lot of good scientific info on this on Youtube. Thank you for your work in this area of study and for presenting this material. Very nice that you passed on the joy of running to your son.

  24. nikesbeast says:

    'The days you dont eat youll find you are more productive'

  25. lmwrt says:

    I do it since 2012 and it's great. My mind has never felt so awaken, lucid and acute before in my life. Great talk.

  26. Fascist Philosophy says:

    FOOD INDUSTRY = HEALTHCARE INDUSTRY = PHARM INDUSTRY , ALL TIED TOGETHER AT THE TOP BY JEWS, SATANISTS, AND CATHOLICS !! A SYSTEM SOCIALLY ENGINEERED TO KILL US YOUNG, (PREFERABLY JUST AROUND RETIREMENT AGE!!)

  27. Joshua Falken says:

    Fasting cures cancer. Plus stop using the drug SUGAR!!! todays heroine

  28. Italian First says:

    I hope everyone benefits from this talk. I have done intermittent fasting now for more than one year, every day in a pattern of 16-18 (fasting) / 8-6 (fed). I am 43 and feel like a teenager.Spread the world…!

  29. Naidu VGA says:

    Someone tell this to trump before he does his next puckered up tongue lashing.

  30. James Goodwin says:

    Weird. Every time I try fasting I get body jerks at night and feel like I’m getting Alzheimer symptoms.

  31. Nikki J says:

    I believe it! I did 72 hours and I've never looked younger❤

  32. Eloisa says:

    Amazing!!! Thank you!!!!!❤️❤️❤️👍💪💪💪

  33. Chris Honsberger says:

    I'd much rather listen to health advice from real scientists than personal trainers or salespeople.

  34. Allma Pašić says:

    Fasting truly should be promoted more. One of the first signs I've noticed about the benefits I've reaped came with my first menstrual cycle. For men, this might not mean a lot, but for women it's a great indicator of what's happening inside your body. No bloating, no pains, no stress, no food cravings. Nothing. I have lost weight, but the real reason why I've started fasting is mental focus and concentration. I find it easier to remember information and I'm much more motivated to get up and get things done. As a college student, this is something I struggled with in the past. Fasting+meditation have, without kidding or overreacting, changed my life for the better.

  35. ken bro says:

    notice the obligatory reference to evolutionary theory; the need to explain this from an evolutionary perspective. Which he did. Not.

  36. DThe1993 says:

    One part that stood out for me from this talk is how the ancient Egyptians created inscriptions 6000 years ago about Fasting.

    Amazing.

  37. Renee Schultz says:

    Amazing ! I love fasting! Works great!

  38. jay mumford says:

    Dr. Mattson is great, it works. Plus the food pyramid is a lie, designed by processed food industry.

  39. Larry Barry says:

    ITS THE CABLE GUY

  40. manue3l1976 says:

    Jesus fasted for 40 days and 40 nights I want to do what Jesus does I fast for 2 to 3 days every month I’m 42 years old nothing hurts. I think fast i move faster.

  41. Pixel Rose says:

    His voice is so quite and the captions aren’t always that good quality on YouTube 😬

  42. chris sainz says:

    He’s not aging well. He looks sick.

  43. Dawna Valentine says:

    Alzheimers does not have a T sound in it!! Why is this word so hard for "professionals" to pronounce properly?

  44. Gary Kewley says:

    I cant take nutrition advice seriously from someone who looks like he just escaped from Auschwitz.

  45. Altander Metaban says:

    amazing

  46. Karen Dyment says:

    could I make homemade ice tea with a squeeze of lemon and stevia for the summer I hate hot drinks in the summer?

  47. Drama Lama says:

    Does anyone know where the scientific articles used for this talk can be found

  48. Jonson Sigamala says:

    Can we do workouts like running and cardio while doing Intermittent Fasting?

  49. Ghufran Shareef says:

    Muslims do fasting 30 days a year. Who could have advice them 1400 years back. It is a Devine religion

  50. Roger Huggett Jr. says:

    I got into a habit of having coffee at 4am before my 12 hour shift and just a La Croix water during my breaks and then eating whatever I wanted from 6-11pm. I lost 10 pounds in a week and wasn't hungry during the day. I feel sharper mentally and physically and it cost me nothing as the reason I started doing it was that I realized I was eating when I wasn't hungry out of habit.

  51. David Costello says:

    Omg im glad someone said it!

  52. Kaeben says:

    At 50, I've discovered all this too late in life to do any real good. I feel better, but all the years lost…

  53. Lynn M says:

    Intermittent fasting and keto saved my life. I couldn't even go a couple of hours without needing to eat and was a sugar addict. Lost weight, health issues disappeared (big ones). Absolutely saved me.

  54. Abdul Munam says:

    Muslim people they do fasting every year at least 30 days prophet Muhammad teach Muslim u should mention that

  55. Kingsley Elijah says:

    I fasted for 6 days and 3 hours and the result was incredible,i became more sensitive to smell and i experience great mental clarity .Life became so easy,things start working better for me,i understand coding syntax more faster .my brain begin to function perfectly as if all the cobweb surrounding it are removed…I must confess that fasting is a powerful tool both physically and mentally.And another extra benefit is that i lost 5kg.

  56. Ibrahim Halil says:

    One of the most useful talk in tedtalks, thanks so much sir!

  57. TheClassicalSymphony says:

    The snag is ur Adam's apple sticks out even more! Look at this fella's skinny neck.

  58. Sumer Babylon says:

    12 hour liver autophagy is not same as the brain auztophagy lol so intermitent doesnt help brain…

  59. M I says:

    This was my first encounter with fasting: this guy really went against the herd-mind at the time, but his TED talk allowed me to listen to IF advocates years later, without skepticism…

    …he saved my life.

  60. David Crandall says:

    This runs counter to what our government used to say about learning. They said students need to have a breakfast provided by the school so they could learn better so they are now providing it at taxpayers expense. They probably have soda and candy machines in our schools too.

  61. TBoneZone says:

    Fasting is the Fountain of Youth.

  62. stian222 says:

    I can’t hear a word the good doctor is saying over the din of his comb-over. Or should I say comb-around? I’ll have to start over, turn the screen off and just listen to it I guess. : )

  63. Einas K Badri says:

    In Islam we’re encouraged to fast 2 days a week plus the 3 days when the moon is full.
    “Eat only when you’re hungry and if you eat, don’t get full”

  64. rami suleiman says:

    great video here something can help also @t

  65. SdS says:

    I found eating 1 meal a day at lunch time suits my body better.

    If I'm invited out for a dinner I don't sleep well.

  66. Amirul Islam says:

    Thanks a lot!

  67. Suburp212 says:

    Been fasting for 6 days. Lost weight, but feel like hit all the time. Sleep twice a day.

  68. Joanne M says:

    Glucagon the key? Need glucagon for lipolysis. Fasting and exercise releases glucagon.

  69. Lostin MIA says:

    I'm totally convinced on this lecture. I have seen and felt exactly what he is talking about. Let me explain as quickly as possible. I have psoriatic arthritus. I feel pain in many places all over my body, every second of every day. I have an auto immune disease. During a 4 month period I felt like it was in remission. I was nearly pain free while lost 40 lbs, I went from 262 lbs to 222 lbs. I had changed my eating habits and was eating less food, not eating late and not eating junk. After the 4 months the pain returned and I also stopped losing weight. This was due to my move across country, as a result I changed my eating habits. After reading this and watching the video it all makes sense now. The lose of weight didn't just help my joints, tendons and ligaments since I was lighter, it actually helped my psoriatic arthritus disease. I will have to experiment now and see if it will happen again because I still need to lose at least 20 lbs more. Great video!!! Thank you!!!!

  70. Wisdom Child says:

    Great job sir

  71. jrf2525 says:

    have you worked with anyone suffering from Tinnitus. I have had this for 4 years and it seems to be getting worse. i have cut out a lot of foods breads, pasta's rice, limit caffine and sugar intake. I do fasting regularly. I havent tried fasting. searching for anything that can help.

  72. Mike Becket says:

    NOTHING OF THE SORT…JUNK BS.

  73. Black Water says:

    This guy was so ahead of his time I'm surprised he wasn't burnt at the stake.

  74. S Kaye says:

    Jesus Christ discussed the spiritual benefit of fasting. By denying the flesh you get closer to God.

  75. Pauline Loft says:

    Amazing!!

  76. Akash Gupta says:

    TED talks are amazing. Information flowing straight from research labs to the public, kind of like intersection of science and public thirst for knowledge. Thanks TED for being the platform you are. This talk is an eye opener. Although I have been aware of the benefits of fasting to some extent, this talk drives home the point convincingly. I wish there were ads/campaigns on TV and internet urging people to adopt healthy lifestyle habits like intermittent fasting and exercising and meditation to balance against the blatant campaigns for consumerism all the time.

  77. Selena Kang Smith says:

    I'm blessed I discovered fasting. I'm proud to be fasting at 39 and I'm looking forward to look good, feel good and spend more time with my family and enjoy life!

  78. Fastnail says:

    Big food and Big Pharma hate fasting as its free and they cant profit from it.

    Incel Keys was paid by them in the 50's and 60''s to hijack scientific research and they still do today.

  79. mouad bekka says:

    thank you Allah for the blessing of ISLAM, we fast one month every year and prophet muhammad peace be upon him adviced to fast couple days a month ,, and taught us so many things 1440 years ago and science nowadays has just discovered that fasting is healthy for,, you want the light and truth and great health and happiness become a muslim and save yourselves

  80. pantslizard says:

    This guy is so skinny he's going to live for 300 years…;>)

  81. Andrew Rosales says:

    I can talk on and on about fasting. If u enjoy having a flat stomach. Then that should cause u to try it out. When u eat too much, too frequent, and in this western world we live in. 600,000 food products that has 80 percent tons of sugar with it will cause u to have that undesirable big belly. Most food has sugar in Usa, we are a sugar based society. When u eat junk food with sugar, u will see immediately u gain 1 lb or more, and it will stay like that tommorrow. Sugar strips yur pottasium and next your soduim goes up relatively and when u have too much soduim u retain water. This bloats your tummy. The fastest way to stop this is fasting. U will like they way u look and feel. U will be happy carrying less weight, u see your tummy flat. U feel good this is a good cycle to be in. GOD bless this man.

  82. REEVOLUCIONAR says:

    ´Very good Mr. Mattson

  83. Enam Lotsu says:

    Why do some people suffer headache when fasting?

  84. aron dombi says:

    Can children fast?

  85. Josh Calkins says:

    However I could see using fasting to help cure cancer just like Kemp is killing your body fasting also is killing your body And it might starve or kill the cancer before it kills any other organs Completely

  86. Kaoru Sugimura says:

    Alright, multiple things here are too vague. First and foremost he mentions how fasting is good but the body gains energy from breaking down the food you eat. Because energy cannot be created nor destroyed it's merely being converted. Now this first issue appears when he mentions how ketones serve as a supplement energy source for the brain. Where are the ketones getting this excess energy if you aren't eating to supply the body with more energy? The only answer is that it obtains it from the body (breaking down other parts of the body for that energy). Typically starting with excess sugar and working it's way up. The problem occurs when there is no excess or the body fails to utilize sugars (like with diabetics) as it quickly begins breaking down the body itself, particularly muscle mass, to obtain that energy. The second major issue with fasting is that it's impossible to know which method would work best for any specific one individual. We are all unique in our metabolism, work/exercise and general health. No one method will be perfect everyone and no one method will work permanently as the body slows naturally with ageing. The final issue is in the speaker himself. For someone praising fasting and even mentioning that he himself does it, he isn't well spoken. He "uhs" a lot to put himself back into the train of thought. He at times lost track of what he's saying. It also doesn't help that he looks like a cancer patient and I know what a person with cancer looks like as I lost two family members to camcer. His eyes are sunken in and his skin looks unhealthy. Typically a sign that the body is either malnourished or that it is extremely overworked.

    I am not denying the potential benefits but I do deny pushing anyone into fasting. It can easily do more harm than good if you aren't careful as it's very well known that the human body will cannibalize itself to make every attempt to keep the brain functioning and survive.

  87. Karen Zilverberg says:

    Thanks.

  88. iqbal ali says:

    MYTHS REGARDING DETOXIFICATION!

    Many vegetarians and vegans incorrectly believe that restriction of animal protein is somehow detoxifying. Animal protein is rich in sulfur-containing amino acids such as cysteine and methionine, which are essential for the formation of glutathione, one of the most ubiquitous intracellular antioxidants needed for detoxification reactions. Plant protein sources contain relatively low concentrations of these important amino acids. Furthermore, obtaining amino acids (and minerals) from plants may be very difficult for the vegan, due to the presence of plant fiber, cellulose and certain enzyme inhibitors commonly found in plant foods.

    Additionally, animal protein contains Vitamin B-12, not found in plant foods. B-12 is critical for liver detoxification, as well as cellular methylation reactions, which directly affect detoxification reactions in cells.

    Additionally, plant-based diets tend to be low in zinc. Zinc and the sulfur-amino acid cysteine (also low in plant foods) are critical for detoxification reactions in the liver, as well as for the formation of a protein/antioxidant known as metallothionein, which can powerfully scavenge toxic metals such as mercury.

    Furthermore, plant sources of iron (known as non-heme) are poorly absorbed in comparison to animal sources of iron (known as heme). Iron is pivotal for the formation of catalase and iron-based SOD (Superoxide dismutases), two critical intracellular antioxidants that participate in detox reactions.

    Vitamin A and D are catalysts to mineral absorption and protein utilization. Without them no minerals can be absorbed, no matter how abundant they may be in your food. Carotenoids found in plant based food need to go trough a complex conversation process to become active vitamin A. Most people have difficulties converting because they are in constant inflammation(due to use of vegetable oils and high carbohydrate intake especially coming from grains) or too toxic. And there is no plant source of vitamin D3 at all.

    These are only a few facts that shows vegan diet should be used only for detoxing the body and not for a life style.

    Another common myth is the "alkaline diet" idea somehow being involved in detoxification. There is no evidence that exists showing how a food with an acid or alkaline pH has any influence upon systemic pH activity in the body. Proponents of the alkaline diet myth erroneously believe that urine and saliva pH can be used to determine the metabolic pH reactions from a food. Urine and saliva are not the sights of metabolic activity in the body, but rather contain residue from metabolic reactions. Furthermore, even if any food does have an ability to alter systemic pH, the influence of the lungs and the kidneys are superior in their ability to affect systemic pH activity, because the kidneys and lungs directly regulate the levels of Co2, bicarbonate and electrolytes.

  89. Bonnie van Niekerk says:

    Jesus fasted. Need any more be said?

  90. Joe Piervincenti says:

    2008. Byrd Alzheimers Center, Tampa, FL. Ketones for Alzheimers leading to coconut oil in the diet. Keronic axcids. Low carb regimen also.

  91. Anser Daad says:

    Thank God, European and Americans are awakening—Modren civilization, Capitalism and industrialism are destroying our internal and environmental health. we are developing world materialistically but we are getting sick, losing health and dependent on Genetically modified foods, commercialized drugs, and health industries.
    Most of the financial institutions, industries, businesses and market capitalization are directly or indirectly related to Jews and their friends. they are Holding media and governments to achieve their mission to establish their global kingship. For this purpose, they have succeded to develop a methodology to make us digitally slaves.

  92. Rosid Muhtadi says:

    Alhamdulillah

  93. Mike McKay says:

    I’ve been skipping breakfast for two months. It’s only tough that first week or so, after that, it’s no big deal. I stop eating at 7pm.. and eat again at noon the next day. Half of the fast is 8 hours while you’re sleeping, so you just need to make it from when you wake up until noon. I’ve found it to be the easiest way to lose weight because I’m not trying to keep track of calories or avoid carbs. That’s much more difficult for me to do day in and day out over a long period of time..

  94. S K says:

    *Burger, free,5 star,
    me:Can I eat?
    Brain:Nope!

    *Burger, illegal,Dont eat!
    Me:………..
    Brain:eat it eat it eat it eat it eat it eat it.

  95. Michael Adamidis Art Channel says:

    Who said "… This kind of demon just leaves by prayer and fasting…" as he was asked by his Disciples, why they couldn't cast it out.. I tell you, Jesus was not the Jesus of TV/Coca-Cola and Churches. Read the bible to know everything about the Jesus of the bible. Fasting has a much deeper meaning, and you are not just your body cells….!

  96. motionandcolor says:

    he cant see past his own religion

  97. butubuta says:

    I wish someone told me how fasting or intermittent fasting can be done for underweight people.

  98. Stig Pedersen says:

    Since I began eating once a day, low carb and no sugar, my mood cleared up completely, my thinking is sharp, my tiredness is gone, in all aspects splendid energy levels; now my question is this: why must I have to be 55 years of age to learn this, and in a way which seems totally coincidentally – by coming across YouTube videos?
    This way of eating and the physical and emotional benefits connected to it, must be taught on a much wider scale on society level.

  99. M B says:

    You're saying fasting makes my brain work faster! Interesting!!!

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